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Hybrid Pile-Drain System to Stabilise Railways Built on Soft Soils

Hybrid Pile-Drain System to Stabilise Railways Built on Soft Soils
混合桩排水系统可稳定软土上修建的铁路
批准号:
LP230100199
负责人:
Prof Buddhima Indraratna
金额:
$30.61万
依托单位国家:
澳大利亚
项目类别:
Linkage Projects
财政年份:
2024
资助国家:
澳大利亚
项目状态:
未结题
起止时间:
2024-01-01 至 2026-12-31

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中文摘要
翻译
澳大利亚沿海土壤经常对铁路的设计和建设构成重大挑战。该项目旨在开发一种新型管桩和预制垂直排水管的混合系统,以防止软基土壤(路基)在重载列车的长时间循环荷载下过度屈服。通过大规模的物理模型模拟和现场试验,通过对土-桩-排水相互作用机制的数值分析,将对这一创新概念进行检验,以建立一种用户友好的设计方法。对于铁路运营商来说,结果将大大降低维护成本,同时延长轨道基础设施的使用寿命,以确保未来更快、更重的列车。
英文摘要
Australian coastal soils often pose significant challenges in the design and construction of railways. The project aims to develop a novel hybrid system of pipe piles & prefabricated vertical drains installed to prevent soft foundation soil (subgrade) from excessive yielding under prolonged cyclic loading by heavy-haul trains. Using large-scale physical model simulations and field trials supported by numerical analysis of soil-pile-drain interaction mechanisms, this innovative concept will be examined to establish a user-friendly design methodology. For rail operators, the outcomes will generate substantially reduced maintenance costs, while extending the longevity of track infrastructure to ensure faster and heavier trains of the future.
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